[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs.
Revision 1.305 by root, Thu Jul 12 08:40:14 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
…		…
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		197
194	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	199	# within the Safe compartment.
196	for my $pkg (qw(	200	for my $pkg (qw(
197	cf::global cf::attachable	201	cf::global cf::attachable
…		…
205	}	209	}
206		210
207	$Event::DIED = sub {	211	$Event::DIED = sub {
208	warn "error in event callback: @_";	212	warn "error in event callback: @_";
209	};	213	};
		214
		215	#############################################################################
210		216
211	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
212		218
213	=over 4	219	=over 4
214		220
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	240	$d
235	} \|\| "[unable to dump $_[0]: '$@']";	241	} \|\| "[unable to dump $_[0]: '$@']";
236	}	242	}
237		243
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
241		245
242	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
243		247
244	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
245		249
246	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
247		258
248	=item cf::lock_wait $string	259	=item cf::lock_wait $string
249		260
250	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
251		262
…		…
317		328
318	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
319		330
320	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
321		332
322	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
325		337
326	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
329	fast or be very important.	341	fast or be very important.
…		…
389	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
390		402
391	$coro	403	$coro
392	}	404	}
393		405
394	sub write_runtime {	406	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		407
397	# first touch the runtime file to show we are still running:	408	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
399		412
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	413	=cut
401	utime undef, undef, $fh;
402	}
403		414
404	my $guard = cf::lock_acquire "write_runtime";	415	sub _store_scalar {
405		416	open my $fh, ">", \my $buf
406	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	417	or die "fork_call: cannot open fh-to-buf in child : $!";
407	or return;	418	Storable::store_fd $_[0], $fh;
408
409	my $value = $cf::RUNTIME + 90 + 10;
410	# 10 is the runtime save interval, for a monotonic clock
411	# 60 allows for the watchdog to kill the server.
412
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
414	and return;
415
416	# always fsync - this file is important
417	aio_fsync $fh
418	and return;
419
420	# touch it again to show we are up-to-date
421	utime undef, undef, $fh;
422
423	close $fh	419	close $fh;
424	or return;
425		420
426	aio_rename "$runtime~", $runtime	421	$buf
427	and return;	422	}
428		423
429	warn "runtime file written.\n";#d#	424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
430		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
431	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
432	}	582	}
433		583
434	=item cf::datalog type => key => value, ...	584	=item cf::datalog type => key => value, ...
435		585
436	Log a datalog packet of the given type with the given key-value pairs.	586	Log a datalog packet of the given type with the given key-value pairs.
…		…
454	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
456		606
457	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	609	Crossfire TRT).
460		610
461	=over 4	611	=over 4
462		612
463	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
464		614
…		…
666	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
667	}	817	}
668		818
669	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
670	} else {	820	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	822	}
673		823
674	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
675	}	825	}
676		826
…		…
874	or return;	1024	or return;
875	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
876	}	1026	}
877		1027
878	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
879	$filename, length $data, scalar @{$av \|\| []};#d#	1029	$filename, length $data, scalar @{$av \|\| []};
880	return ($data, $av);	1030	return ($data, $av);
881	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
882		1038
883	#############################################################################	1039	#############################################################################
884	# command handling &c	1040	# command handling &c
885		1041
886	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1056	}
901		1057
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1059
904	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
905		1065
906	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
907	called.	1067	called.
908		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
909	=cut	1080	=cut
910		1081
911	sub register_extcmd {	1082	sub register_extcmd {
912	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
913		1084
914	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
915	}	1092	}
916		1093
917	cf::player->attach (	1094	cf::player->attach (
918	on_command => sub {	1095	on_command => sub {
919	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1105	cf::override;
929	},	1106	},
930	on_extcmd => sub {	1107	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
932		1109
933	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1111
935	if (ref $msg) {	1112	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
944		1121
945	cf::override;	1122	cf::override;
946	},	1123	},
947	);	1124	);
948		1125
949	sub load_extension {
950	my ($path) = @_;
951
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
953	my $base = $1;
954	my $pkg = $1;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}
977	die $@;
978	}
979
980	push @EXTS, $pkg;
981	}
982
983	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
984	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1131	next unless -r $path;
986	eval {	1132
987	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
988	1	1190	}
989	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
990	}	1196	};
991	}	1197	}
992		1198
993	#############################################################################	1199	#############################################################################
		1200
		1201	=back
994		1202
995	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
996		1204
997	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
998		1206
…		…
1186	}	1394	}
1187		1395
1188	\@paths	1396	\@paths
1189	}	1397	}
1190		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&/g;
		1410	s/(?<![BIUGH])</</g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male\|female> tags
		1420	\|\| s{G<([^>\|])\\|([^>])>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	\|\| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1191	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1192		1450
1193	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1194		1452
1195	=cut	1453	=cut
1196		1454
1197	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1198	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1199		1457
1200	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1201		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1460	}
1204		1461
1205	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1206		1463
1207	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1222		1479
1223	package cf::region;	1480	package cf::region;
1224		1481
1225	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1226		1483
1227	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1228		1485
1229	=cut	1486	=cut
1230		1487
1231	sub find_by_path($) {	1488	sub find_by_path($) {
1232	my ($path) = @_;	1489	my ($path) = @_;
1233		1490
1234	my ($match, $specificity);	1491	my ($match, $specificity);
1235		1492
1236	for my $region (list) {	1493	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1494	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1495	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1496	if $region->specificity > $specificity;
1240	}	1497	}
1241	}	1498	}
1242		1499
…		…
1306	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1307		1564
1308	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1309	local $self->{path};	1566	local $self->{path};
1310	local $self->{load_path};	1567	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1568
1314	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1315	}	1570	}
1316		1571
1317	sub normalise {	1572	sub normalise {
…		…
1417		1672
1418	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1419	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1420	}	1675	}
1421		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1422	sub unlink_save {	1685	sub unlink_save {
1423	my ($self) = @_;	1686	my ($self) = @_;
1424		1687
1425	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1482	$self->load_header_orig	1745	$self->load_header_orig
1483	or return;	1746	or return;
1484	$self->prepare_orig;	1747	$self->prepare_orig;
1485	}	1748	}
1486		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1487	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1754	unless $self->default_region;
1489		1755
1490	1	1756	1
1491	}	1757	}
…		…
1506	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1507		1773
1508	$map->load_header	1774	$map->load_header
1509	or return;	1775	or return;
1510		1776
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1514	$map->reset;	1780	$map->reset;
1515	undef $guard;	1781	undef $guard;
1516	return find $path;	1782	return find $path;
…		…
1583	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1584		1850
1585	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	1852	if $self->per_player;
1587		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
1588	$self	1857	$self
1589	}	1858	}
1590		1859
1591	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	1861	sub load_diag {
…		…
1702		1971
1703	sub reset_at {	1972	sub reset_at {
1704	my ($self) = @_;	1973	my ($self) = @_;
1705		1974
1706	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1709		1977
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1712		1980
…		…
1723	my ($self) = @_;	1991	my ($self) = @_;
1724		1992
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		1994
1727	return if $self->players;	1995	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		1996
1730	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1731		1998
1732	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1733		2000
1734	# need to save uniques path	2001	# need to save uniques path
1735	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1767	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1768		2035
1769	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1770	}	2037	}
1771		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1772	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1773		2076
1774	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2078	instantiated unique items. May block.
1776		2079
1777	=cut	2080	=cut
1778		2081
1779	sub unique_maps() {	2082	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2083	[
1781	or return;	2084	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2085	utf8::decode $_;
1787	next if /\.pst$/;	2086	/\.map$/
1788	next unless /^$PATH_SEP/o;	2087	? normalise $_
1789		2088	: ()
1790	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2090	]
1792
1793	\@paths
1794	}	2091	}
1795		2092
1796	package cf;	2093	package cf;
1797		2094
1798	=back	2095	=back
…		…
1844		2141
1845	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1846		2143
1847	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1849	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1852	}	2163	}
1853	}	2164	}
1854		2165
1855	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1856		2167
…		…
1904	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1905		2216
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2218
1908	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1910		2221
1911	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1912	}	2223	}
1913		2224
1914	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1916		2229
1917	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1918		2231
1919	unless ($map) {	2232	unless ($map) {
1920	# restore original map position	2233	# restore original map position
…		…
1943		2256
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1946	}	2259	}
1947		2260
1948	cf::player->attach (
1949	on_logout => sub {
1950	my ($pl) = @_;
1951
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961
1962	# try to abort aborted map switching on player login :)
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979
1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1981		2262
1982	Moves the player to the given map-path and coordinates by first freezing	2263	Moves the player to the given map-path and coordinates by first freezing
1983	her, loading and preparing them map, calling the provided $check callback	2264	her, loading and preparing them map, calling the provided $check callback
1984	that has to return the map if sucecssful, and then unfreezes the player on	2265	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2266	the new (success) or old (failed) map position.
1986		2267
1987	=cut	2268	=cut
1988		2269
		2270	our $GOTOGEN;
		2271
1989	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
1991		2274
1992	#d# #TODO#	2275	# do generation counting so two concurrent goto's will be executed in-order
1993	if ($check && !ref $check) {	2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1994	warn Carp::longmess "goto called with non-ref check argument";#d#
1995	undef $check;
1996	}
1997		2277
1998	$self->enter_link;	2278	$self->enter_link;
1999		2279
2000	(async {	2280	(async {
2001	my $map = eval {	2281	my $map = eval {
…		…
2014	if ($@) {	2294	if ($@) {
2015	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);	2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
2016	LOG llevError \| logBacktrace, Carp::longmess $@;	2296	LOG llevError \| logBacktrace, Carp::longmess $@;
2017	}	2297	}
2018		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
2019	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
2020	})->prio (1);	2303	})->prio (1);
2021	}	2304	}
2022		2305
2023	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
2024		2307
…		…
2093	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2094	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2095		2378
2096	$self->enter_link;	2379	$self->enter_link;
2097		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
2098	(async {	2385	(async {
2099	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2100	unless (eval {	2387	unless (eval {
2101	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2102		2389
…		…
2129		2416
2130	utf8::encode $text;	2417	utf8::encode $text;
2131	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2132	}	2419	}
2133		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra \|\| length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
2134	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2135		2462
2136	Sends an exti event to the client.	2463	Sends an ext event to the client.
2137		2464
2138	=cut	2465	=cut
2139		2466
2140	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2141	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2142		2469
		2470	return unless $self->extcmd;
		2471
2143	$msg{msgtype} = "event_$type";	2472	$msg{msgtype} = "event_$type";
2144	$self->send_packet ("ext " . cf::to_json \%msg);	2473	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2145	}	2474	}
2146		2475
2147	=item $success = $client->query ($flags, "text", \&cb)	2476	=item $success = $client->query ($flags, "text", \&cb)
2148		2477
2149	Queues a query to the client, calling the given callback with	2478	Queues a query to the client, calling the given callback with
2150	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2479	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2151	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2480	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2152		2481
2153	Queries can fail, so check the return code. Or don't, as queries will become	2482	Queries can fail, so check the return code. Or don't, as queries will
2154	reliable at some point in the future.	2483	become reliable at some point in the future.
2155		2484
2156	=cut	2485	=cut
2157		2486
2158	sub cf::client::query {	2487	sub cf::client::query {
2159	my ($self, $flags, $text, $cb) = @_;	2488	my ($self, $flags, $text, $cb) = @_;
…		…
2167	utf8::encode $text;	2496	utf8::encode $text;
2168	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2497	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2169		2498
2170	$self->send_packet ($self->{query_queue}[0][0])	2499	$self->send_packet ($self->{query_queue}[0][0])
2171	if @{ $self->{query_queue} } == 1;	2500	if @{ $self->{query_queue} } == 1;
		2501
		2502	1
2172	}	2503	}
2173		2504
2174	cf::client->attach (	2505	cf::client->attach (
		2506	on_connect => sub {
		2507	my ($ns) = @_;
		2508
		2509	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2510	},
2175	on_reply => sub {	2511	on_reply => sub {
2176	my ($ns, $msg) = @_;	2512	my ($ns, $msg) = @_;
2177		2513
2178	# this weird shuffling is so that direct followup queries	2514	# this weird shuffling is so that direct followup queries
2179	# get handled first	2515	# get handled first
…		…
2191	} else {	2527	} else {
2192	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2528	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2193	}	2529	}
2194	}	2530	}
2195	},	2531	},
		2532	on_exticmd => sub {
		2533	my ($ns, $buf) = @_;
		2534
		2535	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2536
		2537	if (ref $msg) {
		2538	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2539	if (my %reply = $cb->($ns, $msg)) {
		2540	$reply{msgid} = $msg->{msgid};
		2541	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2542	}
		2543	}
		2544	} else {
		2545	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2546	}
		2547
		2548	cf::override;
		2549	},
2196	);	2550	);
2197		2551
2198	=item $client->async (\&cb)	2552	=item $client->async (\&cb)
2199		2553
2200	Create a new coroutine, running the specified callback. The coroutine will	2554	Create a new coroutine, running the specified callback. The coroutine will
…		…
2249		2603
2250	=pod	2604	=pod
2251		2605
2252	The following functions and methods are available within a safe environment:	2606	The following functions and methods are available within a safe environment:
2253		2607
2254	cf::object contr pay_amount pay_player map	2608	cf::object
		2609	contr pay_amount pay_player map x y force_find force_add
		2610	insert remove
		2611
2255	cf::object::player player	2612	cf::object::player
2256	cf::player peaceful	2613	player
2257	cf::map trigger	2614
		2615	cf::player
		2616	peaceful
		2617
		2618	cf::map
		2619	trigger
2258		2620
2259	=cut	2621	=cut
2260		2622
2261	for (	2623	for (
2262	["cf::object" => qw(contr pay_amount pay_player map)],	2624	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2625	insert remove)],
2263	["cf::object::player" => qw(player)],	2626	["cf::object::player" => qw(player)],
2264	["cf::player" => qw(peaceful)],	2627	["cf::player" => qw(peaceful)],
2265	["cf::map" => qw(trigger)],	2628	["cf::map" => qw(trigger)],
2266	) {	2629	) {
2267	no strict 'refs';	2630	no strict 'refs';
…		…
2338	=back	2701	=back
2339		2702
2340	=cut	2703	=cut
2341		2704
2342	#############################################################################	2705	#############################################################################
2343
2344	=head2 EXTENSION DATABASE SUPPORT
2345
2346	Crossfire maintains a very simple database for extension use. It can
2347	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2348	convert to/from binary).
2349
2350	The parameter C<$family> should best start with the name of the extension
2351	using it, it should be unique.
2352
2353	=over 4
2354
2355	=item $value = cf::db_get $family => $key
2356
2357	Returns a single value from the database.
2358
2359	=item cf::db_put $family => $key => $value
2360
2361	Stores the given C<$value> in the family.
2362
2363	=cut
2364
2365	our $DB;
2366
2367	sub db_init {
2368	unless ($DB) {
2369	$DB = BDB::db_create $DB_ENV;
2370
2371	cf::sync_job {
2372	eval {
2373	$DB->set_flags (BDB::CHKSUM);
2374
2375	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2376	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2377	cf::cleanup "db_open(db): $!" if $!;
2378	};
2379	cf::cleanup "db_open(db): $@" if $@;
2380	};
2381	}
2382	}
2383
2384	sub db_get($$) {
2385	my $key = "$_[0]/$_[1]";
2386
2387	cf::sync_job {
2388	BDB::db_get $DB, undef, $key, my $data;
2389
2390	$! ? ()
2391	: $data
2392	}
2393	}
2394
2395	sub db_put($$$) {
2396	BDB::dbreq_pri 4;
2397	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2398	}
2399
2400	=item cf::cache $id => [$paths...], $processversion => $process
2401
2402	Generic caching function that returns the value of the resource $id,
2403	caching and regenerating as required.
2404
2405	This function can block.
2406
2407	=cut
2408
2409	sub cache {
2410	my ($id, $src, $processversion, $process) = @_;
2411
2412	my $meta =
2413	join "\x00",
2414	$processversion,
2415	map {
2416	aio_stat $_
2417	and Carp::croak "$_: $!";
2418
2419	($_, (stat _)[7,9])
2420	} @$src;
2421
2422	my $dbmeta = db_get cache => "$id/meta";
2423	if ($dbmeta ne $meta) {
2424	# changed, we may need to process
2425
2426	my @data;
2427	my $md5;
2428
2429	for (0 .. $#$src) {
2430	0 <= aio_load $src->[$_], $data[$_]
2431	or Carp::croak "$src->[$_]: $!";
2432	}
2433
2434	# if processing is expensive, check
2435	# checksum first
2436	if (1) {
2437	$md5 =
2438	join "\x00",
2439	$processversion,
2440	map {
2441	Coro::cede;
2442	($src->[$_], Digest::MD5::md5_hex $data[$_])
2443	} 0.. $#$src;
2444
2445
2446	my $dbmd5 = db_get cache => "$id/md5";
2447	if ($dbmd5 eq $md5) {
2448	db_put cache => "$id/meta", $meta;
2449
2450	return db_get cache => "$id/data";
2451	}
2452	}
2453
2454	my $t1 = Time::HiRes::time;
2455	my $data = $process->(\@data);
2456	my $t2 = Time::HiRes::time;
2457
2458	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2459
2460	db_put cache => "$id/data", $data;
2461	db_put cache => "$id/md5" , $md5;
2462	db_put cache => "$id/meta", $meta;
2463
2464	return $data;
2465	}
2466
2467	db_get cache => "$id/data"
2468	}
2469
2470	=item fork_call { }, $args
2471
2472	Executes the given code block with the given arguments in a seperate
2473	process, returning the results. Everything must be serialisable with
2474	Coro::Storable. May, of course, block. Note that the executed sub may
2475	never block itself or use any form of Event handling.
2476
2477	=cut
2478
2479	sub fork_call(&@) {
2480	my ($cb, @args) = @_;
2481
2482	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2483	# or die "socketpair: $!";
2484	pipe my $fh1, my $fh2
2485	or die "pipe: $!";
2486
2487	if (my $pid = fork) {
2488	close $fh2;
2489
2490	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2491	$res = Coro::Storable::thaw $res;
2492
2493	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2494
2495	die $$res unless "ARRAY" eq ref $res;
2496
2497	return wantarray ? @$res : $res->[-1];
2498	} else {
2499	reset_signals;
2500	local $SIG{__WARN__};
2501	local $SIG{__DIE__};
2502	eval {
2503	close $fh1;
2504
2505	my @res = eval { $cb->(@args) };
2506	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2507	};
2508
2509	warn $@ if $@;
2510	_exit 0;
2511	}
2512	}
2513
2514
2515
2516	#############################################################################
2517	# the server's init and main functions	2706	# the server's init and main functions
2518		2707
2519	sub load_facedata($) {	2708	sub load_facedata($) {
2520	my ($path) = @_;	2709	my ($path) = @_;
2521		2710
…		…
2533	{	2722	{
2534	my $faces = $facedata->{faceinfo};	2723	my $faces = $facedata->{faceinfo};
2535		2724
2536	while (my ($face, $info) = each %$faces) {	2725	while (my ($face, $info) = each %$faces) {
2537	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2726	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2538	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2727	cf::face::set_visibility $idx, $info->{visibility};
		2728	cf::face::set_magicmap $idx, $info->{magicmap};
2539	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2729	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2540	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2730	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2541	Coro::cede;	2731
		2732	cf::cede_to_tick;
2542	}	2733	}
2543		2734
2544	while (my ($face, $info) = each %$faces) {	2735	while (my ($face, $info) = each %$faces) {
2545	next unless $info->{smooth};	2736	next unless $info->{smooth};
2546	my $idx = cf::face::find $face	2737	my $idx = cf::face::find $face
2547	or next;	2738	or next;
2548	if (my $smooth = cf::face::find $info->{smooth}) {	2739	if (my $smooth = cf::face::find $info->{smooth}) {
		2740	cf::face::set_smooth $idx, $smooth;
2549	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2741	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2550	} else {	2742	} else {
2551	warn "smooth face '$info->{smooth}' not found for face '$face'";	2743	warn "smooth face '$info->{smooth}' not found for face '$face'";
2552	}	2744	}
2553	Coro::cede;	2745
		2746	cf::cede_to_tick;
2554	}	2747	}
2555	}	2748	}
2556		2749
2557	{	2750	{
2558	my $anims = $facedata->{animinfo};	2751	my $anims = $facedata->{animinfo};
2559		2752
2560	while (my ($anim, $info) = each %$anims) {	2753	while (my ($anim, $info) = each %$anims) {
2561	cf::anim::set $anim, $info->{frames}, $info->{facings};	2754	cf::anim::set $anim, $info->{frames}, $info->{facings};
2562	Coro::cede;	2755	cf::cede_to_tick;
2563	}	2756	}
2564		2757
2565	cf::anim::invalidate_all; # d'oh	2758	cf::anim::invalidate_all; # d'oh
		2759	}
		2760
		2761	{
		2762	# TODO: for gcfclient pleasure, we should give resources
		2763	# that gcfclient doesn't grok a >10000 face index.
		2764	my $res = $facedata->{resource};
		2765	my $enc = JSON::XS->new->utf8->canonical;
		2766
		2767	while (my ($name, $info) = each %$res) {
		2768	my $meta = $enc->encode ({
		2769	name => $name,
		2770	type => $info->{type},
		2771	copyright => $info->{copyright}, #TODO#
		2772	});
		2773	my $data = pack "(w/a)", $meta, $info->{data};
		2774	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2775
		2776	my $idx = (cf::face::find $name) \|\| cf::face::alloc $name;
		2777	cf::face::set_type $idx, 1;
		2778	cf::face::set_data $idx, 0, $data, $chk;
		2779
		2780	cf::cede_to_tick;
		2781	}
2566	}	2782	}
2567		2783
2568	1	2784	1
2569	}	2785	}
2570		2786
2571	sub reload_regions {	2787	sub reload_regions {
2572	load_resource_file "$MAPDIR/regions"	2788	load_resource_file "$MAPDIR/regions"
2573	or die "unable to load regions file\n";	2789	or die "unable to load regions file\n";
		2790
		2791	for (cf::region::list) {
		2792	$_->{match} = qr/$_->{match}/
		2793	if exists $_->{match};
		2794	}
2574	}	2795	}
2575		2796
2576	sub reload_facedata {	2797	sub reload_facedata {
2577	load_facedata "$DATADIR/facedata"	2798	load_facedata "$DATADIR/facedata"
2578	or die "unable to load facedata\n";	2799	or die "unable to load facedata\n";
2579	}	2800	}
2580		2801
2581	sub reload_archetypes {	2802	sub reload_archetypes {
2582	load_resource_file "$DATADIR/archetypes"	2803	load_resource_file "$DATADIR/archetypes"
2583	or die "unable to load archetypes\n";	2804	or die "unable to load archetypes\n";
		2805	#d# NEED to laod twice to resolve forward references
		2806	# this really needs to be done in an extra post-pass
		2807	# (which needs to be synchronous, so solve it differently)
		2808	load_resource_file "$DATADIR/archetypes"
		2809	or die "unable to load archetypes\n";
2584	}	2810	}
2585		2811
2586	sub reload_treasures {	2812	sub reload_treasures {
2587	load_resource_file "$DATADIR/treasures"	2813	load_resource_file "$DATADIR/treasures"
2588	or die "unable to load treasurelists\n";	2814	or die "unable to load treasurelists\n";
…		…
2591	sub reload_resources {	2817	sub reload_resources {
2592	warn "reloading resource files...\n";	2818	warn "reloading resource files...\n";
2593		2819
2594	reload_regions;	2820	reload_regions;
2595	reload_facedata;	2821	reload_facedata;
		2822	#reload_archetypes;#d#
2596	reload_archetypes;	2823	reload_archetypes;
2597	reload_treasures;	2824	reload_treasures;
2598		2825
2599	warn "finished reloading resource files\n";	2826	warn "finished reloading resource files\n";
2600	}	2827	}
…		…
2657	},	2884	},
2658	);	2885	);
2659	}	2886	}
2660	}	2887	}
2661		2888
		2889	sub write_runtime {
		2890	my $runtime = "$LOCALDIR/runtime";
		2891
		2892	# first touch the runtime file to show we are still running:
		2893	# the fsync below can take a very very long time.
		2894
		2895	IO::AIO::aio_utime $runtime, undef, undef;
		2896
		2897	my $guard = cf::lock_acquire "write_runtime";
		2898
		2899	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2900	or return;
		2901
		2902	my $value = $cf::RUNTIME + 90 + 10;
		2903	# 10 is the runtime save interval, for a monotonic clock
		2904	# 60 allows for the watchdog to kill the server.
		2905
		2906	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2907	and return;
		2908
		2909	# always fsync - this file is important
		2910	aio_fsync $fh
		2911	and return;
		2912
		2913	# touch it again to show we are up-to-date
		2914	aio_utime $fh, undef, undef;
		2915
		2916	close $fh
		2917	or return;
		2918
		2919	aio_rename "$runtime~", $runtime
		2920	and return;
		2921
		2922	warn "runtime file written.\n";
		2923
		2924	1
		2925	}
		2926
2662	sub emergency_save() {	2927	sub emergency_save() {
2663	my $freeze_guard = cf::freeze_mainloop;	2928	my $freeze_guard = cf::freeze_mainloop;
2664		2929
2665	warn "enter emergency perl save\n";	2930	warn "enter emergency perl save\n";
2666		2931
…		…
2741	%EXT_CORO = ();	3006	%EXT_CORO = ();
2742		3007
2743	warn "removing commands";	3008	warn "removing commands";
2744	%COMMAND = ();	3009	%COMMAND = ();
2745		3010
2746	warn "removing ext commands";	3011	warn "removing ext/exti commands";
2747	%EXTCMD = ();	3012	%EXTCMD = ();
		3013	%EXTICMD = ();
2748		3014
2749	warn "unloading/nuking all extensions";	3015	warn "unloading/nuking all extensions";
2750	for my $pkg (@EXTS) {	3016	for my $pkg (@EXTS) {
2751	warn "... unloading $pkg";	3017	warn "... unloading $pkg";
2752		3018

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs. Revision 1.305 by root, Thu Jul 12 08:40:14 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs.
Revision 1.305 by root, Thu Jul 12 08:40:14 2007 UTC